Salon Booking System <= 10.30.19 — Missing Authorization to Authenticated (Subscriber+) Booking Approval Bypass
CVE-2026-11887Published · Updated Action summary
Affected: ≤10.30.19Update to 10.30.20 or newer
All remediation steps- Severity
- Medium4.3
- CVSS
- 4.3CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:LPrivileges required- Low
UI:NUser interaction- None
S:UScope- Unchanged
C:NConfidentiality- None
I:LIntegrity- Low
A:NAvailability- None
- Required access
- Unknown
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Salon Booking System – Appointment Booking for Salons, Barbershops & Spas salon-booking-system
- Affected≤ 10.30.19
- Patched in10.30.20
Update to 10.30.20 or newer.
You are affected if you run ≤ 10.30.19. Version 10.30.20 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Salon Booking System – Appointment Booking for Salons, Barbershops & Spas.
- No admin access? Run a passive check of your site. It reads public files only.
What to do
- Update to version 10.30.20, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Salon Booking System – Appointment Booking for Salons, Barbershops & Spas to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Kevin.
The Salon Booking System plugin for WordPress is vulnerable to Missing Authorization in versions up to, and including, 10.30.19. This is due to missing capability check and nonce verification on the SetBookingStatus and SetDefaultBookingStatus AJAX handlers. This makes it possible for authenticated attackers, with subscriber-level access and above, to change the approval status of any booking without authorization.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in Salon Booking System – Appointment Booking for Salons, Barbershops & Spas
All 50| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium4.3 | Missing Authorization ≤10.31.10Update to 10.31.11 | CVE-2026-110032 | |
| High8.8 | 10.31.10 - Authenticated (Salon Staff+) Privilege Escalation 10.17 – 10.31.10Update to 10.31.11 | CVE-2026-110031 | |
| Medium6.4 | Authenticated (Salon Staff+) Stored Cross-Site Scripting ≤10.31.10Update to 10.31.11 | CVE-2026-110033 | |
| Medium5.3 | Unauthenticated Negative Booking Total Creation ≤10.31.10Update to 10.31.11 | CVE-2026-110034 | |
| Medium4.3 | Missing Authorization ≤10.31.10Update to 10.31.11 | CVE-2026-110035 |
- Medium4.3Missing Authorization
≤10.31.10Update to 10.31.11
- High8.810.31.10 - Authenticated (Salon Staff+) Privilege Escalation
10.17 – 10.31.10Update to 10.31.11
- Medium6.4Authenticated (Salon Staff+) Stored Cross-Site Scripting
≤10.31.10Update to 10.31.11
- Medium5.3Unauthenticated Negative Booking Total Creation
≤10.31.10Update to 10.31.11
- Medium4.3Missing Authorization
≤10.31.10Update to 10.31.11
Timeline
CVE published
Severity medium, CVSS 4.3
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- [object Object]. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.